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New antibody drug trial offers hope for Hard-to-Treat wet AMD
NCT ID NCT07547228
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This early-phase trial tests a new drug called PRL3-zumab in 15 people with wet age-related macular degeneration (nAMD) who have not improved with standard treatments. The drug is given by IV every two weeks for three doses. The study will check for safety and any signs that vision or eye health may improve.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- PRL3-zumab (a lab-made antibody given by IV)
- What this could lead to
- If it works, this could offer a new treatment option for people with wet AMD who have not responded to current therapies.
- What could go wrong
- This is a very early, small study (15 people) focused on safety. It may not improve vision, and side effects are unknown. Success in this small group does not guarantee broader benefit.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
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About 15 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2025
- Expected to finish
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Jul 2027
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Patients with Neovascular Age-related Macular Degeneration (nAMD). 2. Willing to provide written informed consent for the study. 3. Patients undergoing intravitreal treatment having failed at least two Standard-of care treatments and be receiving ongoing intravitreal treatment at intervals of ≤ 8 weeks including Ranibizumab, Aflibercept, or Faricimab. 4. Participants receiving intravitreal treatment at screening must complete a wash-out period before enrolment. This wash-out period should be calculated based on five half-lives of the specific intravitreal treatment the participant is receiving. Below is the washing out period for some standard of care treatments. 1. Ranibizumab (half-life: 9 days) requires a wash-out period of 45 days (7 weeks) 2. Aflibercept (half-life: 11 days) requires a wash-out period of 55 days (8 weeks) 3. Faricimab (half-life: 7.5 days) requires a wash-out period of 37.5 days (5 weeks) 4. Bevacizumab (half-life: 6 days) requires a wash-out period of 30 days (4weeks) 5. Subfoveal CNV or juxtafoveal/extrafoveal CNV with a subfoveal component related to the CNV activity identified by FFA or OCT (where CNV activity is defined as showing evidence of subretinal fluid, subretinal hyperreflective material, or leakage). 6. BCVA ETDRS letter score of 78 to 24 (corresponding to a Snellen equivalent of approximately 20/32 to 20/320) in the study eye. 7. Decrease in BCVA determined to be primarily the result of nAMD or DR/DME in the study eye. 8. Presence of pigment epithelium detachment (PED), intraretinal fluid (IRF) and/or subretinal fluid (SRF) affecting the central subfield of the study eye on OCT. 9. Adequate organ (liver and renal) and hematological functions as evidenced by the laboratory results obtained within 7 days of treatment which are within the normal range for the study population, or with abnormalities deemed not clinically significant by the investigators. Exclusion Criteria: 1. Scar, fibrosis, atrophy, or retinal pigment epithelial tears involving the central fovea in the study eye. 2. Uncontrolled glaucoma (defined as IOP \>25 mmHg despite treatment with antiglaucoma medication) in the study eye. 3. History of idiopathic or autoimmune uveitis in the study eye. 4. Myopia of a spherical equivalent of at least 8 diopters in the study eye prior to any refractive or cataract surgery. 5. Evidence of extraocular or periocular infection or inflammation (including infectious blepharitis, keratitis, scleritis, or conjunctivitis) in either eye at the time of screening/randomization. 6. Uncontrolled blood pressure (defined as systolic \>160 mmHg or diastolic \>95 mmHg). 7. Patient is receiving systemic glucocorticoids (only if higher than 10mg or equivalent of prednisolone daily) or other immunosuppressive treatment for autoimmune disease or any other medical condition.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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NUHS Department of Ophthalmology
RECRUITINGSingapore, Singapore
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a new eye injection save vision in wet AMD?
- Eye injection aims to tame leading causes of blindness
- Higher-Dose eye injection may help wet AMD patients who Didn't respond to standard treatments
- New eye drug aims to save sight in wet AMD